The attend/primary profile insert info
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '3423,'profile',936,'125.00')' at line 2
INSERT INTO cart(user_reg_userid,contentid,content_type,event_eventid,fee_amount) 
					VALUES (,3423,'profile',936,'125.00')

Function insert info
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '10828,'function',936, '1','')' at line 2
INSERT INTO cart (user_reg_userid,contentid,content_type,event_eventid, function_quantity,fee_amount)
						VALUES (,10828,'function',936, '1','')
the regid : 0
the sql: INSERT INTO registration(user_reg_userid,event_eventid,date_and_time,primary_regid, entry_mode, adm_id) VALUES 
					(,936,'2016-04-09 10:56:57','0',  'self',0)